Device for purifying automobile coating pretreatment tank liquid

Abstract

The utility model relates to the technical field of electrophoresis liquid purification, in particular to a device for purifying automobile coating pretreatment tank liquid, which comprises a membrane purification mechanism, a rough removal mechanism and a barrel cover are sequentially mounted above the membrane purification mechanism, a stirring motor is mounted above the barrel cover, and linkage mechanisms are arranged on two sides of the stirring motor. The membrane purification mechanism comprises a membrane purification barrel and an ultrafiltration assembly, and the ultrafiltration assembly is used for membrane filtration electrophoresis tank liquid; the coarse removal mechanism comprises a coarse treatment cylinder, a bearing seat, a connecting channel and a baffle ring, and a metal filter bag is mounted above the bearing seat and used for coarsely filtering large-particle impurities in tank liquid. According to the utility model, the stirring motor is used for driving the linkage mechanism to perform vibration treatment on large-particle impurities coarsely filtered out in the metal filter bag, so that the metal filter bag can continuously perform coarse filtration treatment on tank liquid, the working efficiency can be improved, and the maintenance period can be prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of electrophoretic solution purification technology, specifically relating to a device for purifying the pretreatment tank solution for automotive coating. Background Technology

[0002] Pretreatment for automotive painting is mainly to prepare for electrophoretic coating. Through steps such as cleaning, degreasing, surface conditioning, and phosphating, impurities, grease, and rust on the car body surface are removed, forming a uniform phosphating film, thereby improving the adhesion of the car body surface and providing a good base for electrophoretic coating. Both pretreatment and electrophoresis use bath solutions, which need to be purified after a certain period of use.

[0003] Chinese patent CN220802311U discloses an electrophoresis solution purification device, comprising a purification chamber, a chamber body, a coarse filter assembly for filtering particulate impurities in the electrophoretic coating solution, and a centrifugal device for filtering moisture and impurity ions. The chamber body has an inlet pipe and an outlet pipe. The centrifugal device includes a centrifugal motor for driving its rotation, an ultrafiltration tube for filtering the electrophoretic coating solution, and a centrifugal plate for mounting the ultrafiltration tube. The centrifugal motor is fixedly mounted on the bottom of the chamber body. A stirring blade driven by the centrifugal motor is installed inside the chamber body. The electrophoretic solution filtered by the centrifugal device is discharged from the outlet pipe under the centrifugal force generated by the rotating stirring blade. This invention provides an electrophoresis solution purification device that improves impurity removal efficiency while facilitating the discharge of the purified electrophoretic solution.

[0004] The existing electrophoresis solution purification devices can use centrifugal force to coarsely treat the solution in the automotive electrophoresis pool and filter out large particles of impurities, thus avoiding clogging of the membrane filtration mechanism of the purification device. However, after long-term use, large particles of impurities will accumulate in the metal filter bag, requiring regular cleaning. At this time, the solution cannot be purified, thus limiting the working efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for purifying the pretreatment tank liquid for automotive painting, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An apparatus for purifying pretreatment tank solutions for automotive coating includes a membrane purification mechanism. A coarse removal mechanism and a tank lid are sequentially mounted above the membrane purification mechanism. A stirring motor is mounted above the tank lid, and linkage mechanisms are provided on both sides of the stirring motor. The membrane purification mechanism includes a membrane purification tank and an ultrafiltration assembly, the ultrafiltration assembly being used for membrane filtration of the electrophoresis tank solution. The coarse removal mechanism includes a coarse treatment cylinder, a receiving seat, a connecting channel, and a retaining ring. A metal filter bag is mounted above the receiving seat, the metal filter bag being used for coarse filtration of large particulate impurities in the tank solution. The connecting channel is used to remove impurities. The linkage mechanisms include a connecting rod and a sliding plate, the sliding plate cooperating with the retaining ring and impacting the metal filter bag from left and right.

[0008] Preferably, the connecting channel is fixedly connected to both sides of the receiving seat, a filter plate is embedded below the connecting channel, the filter plate is used for secondary coarse treatment, and a guide block is fixedly connected inside the receiving seat, the guide block is used to guide impurities.

[0009] Preferably, the connecting channel communicates with the interior of the receiving seat, the connecting channel passes through the membrane purification tank, a processing port is opened at the end of the connecting channel away from the receiving seat, and a baffle is inserted into the side of the connecting channel near the processing port of the membrane purification tank.

[0010] Preferably, the retaining ring is fixedly connected to the inner wall of the coarse treatment cylinder, and the retaining ring is composed of a protruding section and a recessed section connected to each other.

[0011] Preferably: the output end of the stirring motor is provided with a stirring shaft, the stirring shaft passes through the tank cover, the top of the tank cover is provided with a liquid inlet, stirring blades are installed around the stirring shaft, a liquid outlet pipe is provided on the outside of the membrane purification tank, a centrifugal motor is installed at the bottom of the membrane purification tank, the output end of the centrifugal motor is connected to the ultrafiltration assembly, and one end of the connecting rod is fixedly connected to both sides of the stirring shaft.

[0012] Preferably, the end of the connecting rod away from the stirring shaft is provided with uniformly arranged limiting tracks, the limiting tracks are connected to each other by a connecting plate, and the limiting tracks are connected to the connecting rod by the connecting plate.

[0013] Preferably, the sliding plate is slidably connected inside the limiting track, a gasket is fixedly connected to one end of the sliding plate near the metal filter bag, springs are provided on both sides of the sliding plate, a connecting plate is provided on the outside of the sliding plate, and the sliding plates are connected to each other through the connecting plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] I. This utility model utilizes a stirring motor-driven linkage mechanism to vibrate the large particulate impurities that are coarsely filtered out inside the metal filter bag, thereby enabling the metal filter bag to continuously perform coarse filtration of the tank liquid, which can improve work efficiency and extend the maintenance cycle.

[0016] Second, this utility model, through the set connecting channel, can guide and collect large particulate impurities that are removed during coarse filtration. Attached Figure Description

[0017] Figure 1 This is a perspective view of the entire utility model;

[0018] Figure 2 This is a cross-sectional view of the entire utility model;

[0019] Figure 3 This is a schematic diagram showing the overall structure of this utility model, separated from the rest.

[0020] Figure 4 This is a schematic diagram of the linkage mechanism of this utility model;

[0021] Figure 5 This utility model Figure 3 A schematic diagram of the middle section;

[0022] Figure 6 This utility model Figure 3 A schematic diagram of the middle retaining ring.

[0023] In the picture:

[0024] 1. Membrane purification unit; 11. Membrane purification tank; 12. Ultrafiltration module; 13. Centrifugal motor; 14. Discharge pipe;

[0025] 2. Coarse removal mechanism; 21. Coarse treatment cylinder; 22. Metal filter bag; 23. Receiving seat; 24. Guide block; 25. Connecting channel; 26. Filter plate; 27. Baffle; 28. Treatment port; 29. ​​Retaining ring;

[0026] 3. Bucket lid;

[0027] 4. Stirring motor; 41. Stirring shaft; 42. Stirring blades;

[0028] 5. Linkage mechanism; 51. Connecting rod; 52. Connecting plate; 53. Limiting track; 54. Sliding plate; 55. Connecting plate; 56. Spring; 57. Shim. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1-6 As shown, this utility model provides a device for purifying the pretreatment tank liquid for automotive coating, including a membrane purification mechanism 1, a coarse removal mechanism 2 and a bucket cover 3 installed sequentially above the membrane purification mechanism 1, a stirring motor 4 installed above the bucket cover 3, and a linkage mechanism 5 provided on both sides of the stirring motor 4.

[0031] The membrane purification mechanism 1 includes a membrane purification tank 11 and an ultrafiltration module 12, the ultrafiltration module 12 being used for membrane filtration of the electrophoresis bath solution; the membrane purification tank 11, the ultrafiltration module 12 and the centrifugal motor 13 constitute the prior art device for purifying the electrophoresis bath solution by membrane filtration.

[0032] The coarse removal mechanism 2 includes a coarse treatment cylinder 21, a receiving seat 23, a connecting channel 25 and a retaining ring 29. A metal filter bag 22 is installed above the receiving seat 23. The metal filter bag 22 is used to coarsely filter large particulate impurities in the tank liquid. The connecting channel 25 is used to remove impurities.

[0033] The linkage mechanism 5 includes a connecting rod 51 and a sliding plate 54. The sliding plate 54 is used to cooperate with the retaining ring 29 and to impact the metal filter bag 22 from left and right.

[0034] In a further embodiment, the connecting channel 25 is fixedly connected to both sides of the receiving seat 23, and a filter plate 26 is embedded below the connecting channel 25. The filter plate 26 is used for secondary coarse treatment. A guide block 24 is fixedly connected inside the receiving seat 23. The guide block 24 is used to guide impurities.

[0035] In this embodiment, the guide block 24, filter plate 26 and metal filter bag 22 are made of the same material, and the filter plate 26 has a smaller pore size, thereby improving the particulate impurities that can be filtered in the coarse treatment; the guide block 24 is composed of a conical block in the middle and arc-shaped blocks on both sides, which can guide impurities to the port of the connecting channel 25. The guide block 24 itself has the same porous structure as the metal filter bag 22, and the pore size is the same as that of the metal filter bag 22.

[0036] In a further embodiment, the connecting channel 25 connects to the interior of the receiving seat 23, the connecting channel 25 penetrates the membrane purification tank 11, and a processing port 28 is opened at the end of the connecting channel 25 away from the receiving seat 23. A baffle 27 is inserted into the side of the connecting channel 25 near the processing port 28 close to the membrane purification tank 11.

[0037] In this embodiment, the connecting channel 25 has a seal at the point where it passes through the membrane purification tank 11; the baffle 27 is used to prevent the tank liquid from splashing out from the treatment port 28, and the baffle 27 has a track and a seal at the insertion point; the treatment port 28 has a cover.

[0038] In a further embodiment, the retaining ring 29 is fixedly connected to the inner wall of the roughing cylinder 21, and the retaining ring 29 is composed of a protruding section and a recessed section connected to each other.

[0039] In this embodiment, the retaining ring 29 is annular, and its protruding and recessed sections allow the sliding plate 54 to slide left and right as the sliding plate 54 rotates with the stirring shaft 41.

[0040] In a further embodiment, the output end of the stirring motor 4 is provided with a stirring shaft 41, the stirring shaft 41 passes through the bucket cover 3, the top of the bucket cover 3 is provided with a liquid inlet, the outer periphery of the stirring shaft 41 is provided with stirring blades 42, the outside of the membrane purification bucket 11 is provided with a liquid outlet pipe 14, the bottom of the membrane purification bucket 11 is provided with a centrifugal motor 13, the output end of the centrifugal motor 13 is connected to the ultrafiltration assembly 12, and one end of the connecting rod 51 is fixedly connected to both sides of the stirring shaft 41.

[0041] In this embodiment, when the stirring motor 4 is in operation, the stirring shaft 41 and the stirring blade 42 will rotate at high speed, thereby dispersing the liquid that has just entered the metal filter bag 22 and passing it through the metal filter bag 22 for sieving.

[0042] In a further embodiment, the end of the connecting rod 51 away from the stirring shaft 41 is provided with uniformly arranged limiting tracks 53, which are connected to each other by a connecting plate 52, and the limiting tracks 53 are connected to the connecting rod 51 by the connecting plate 52.

[0043] In this embodiment, the limiting track 53 is used to limit the sliding range of the sliding plate 54, and the number of limiting tracks 53 corresponds to the number of sliding plates 54. The connecting plate 52 not only connects to the limiting track 53, but also connects to the connecting rod 51, so that the connecting rod 51 can rotate with the connecting plate 52 and the limiting track 53 after the stirring motor 4 is running.

[0044] In a further embodiment, the sliding plate 54 is slidably connected inside the limiting track 53, and a gasket 57 is fixedly connected to one end of the sliding plate 54 near the metal filter bag 22. Springs 56 are provided on both sides of the sliding plate 54, and a connecting plate 55 is provided on the outside of the sliding plate 54. The sliding plates 54 are connected to each other through the connecting plates 55.

[0045] In this embodiment, the spring 56 is used to keep one end of the sliding plate 54 in contact with the inner side of the retaining ring 29, so as to cooperate with the retaining ring 29 to make the sliding plate 54 slide back and forth; the pad 57 is used to directly contact the outer periphery of the metal filter bag 22 and has a certain buffer, so as to prevent the sliding plate 54 from damaging the metal filter bag 22 when it rotates and impacts the metal filter bag 22.

[0046] The working principle of this utility model is as follows:

[0047] When the electrophoresis tank solution needs to be purified, the tank solution can be poured into the metal filter bag 22 through the liquid inlet of the bucket cover 3. At this time, large particles of impurities in the tank solution will be filtered by the metal filter bag 22. At this time, the external control device will drive the stirring motor 4 and the ultrafiltration component 12 to operate. The operation of the ultrafiltration component 12 will purify the coarsely treated tank solution.

[0048] The operation of the stirring motor 4 disperses and stirs the liquid in the tank through the stirring shaft 41 and stirring blade 42 at its output end. At the same time, it also drives the linkage mechanism 5 to rotate. During the overall rotation of the linkage mechanism 5, one end of the sliding plate 54 is pressed against the inner side of the retaining ring 29, so that the sliding plate 54 slides back and forth within the limited range of the limiting track 53, thereby causing the gasket 57 to impact the surface of the metal filter bag 22 and generate vibration. This shakes off the impurities filtered out by the metal filter bag 22, which are then guided by the guide block 24 inside the receiving seat 23 and enter the interior of the connecting channel 25.

[0049] Large particles of impurities will be collected after entering the connecting channel 25. The tank liquid will enter the connecting channel 25 and be sieved by the filter plate 26. When the amount of impurities collected in the connecting channel 25 reaches a certain amount, the door of the processing port 28 and the baffle 27 can be opened to remove the impurities.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for purifying pretreatment tank solution for automotive coating, comprising a membrane purification mechanism (1), characterized in that, A coarse removal mechanism (2) and a bucket lid (3) are installed in sequence above the membrane purification mechanism (1). A stirring motor (4) is installed above the bucket lid (3). A linkage mechanism (5) is provided on both sides of the stirring motor (4). The membrane purification mechanism (1) includes a membrane purification tank (11) and an ultrafiltration module (12), wherein the ultrafiltration module (12) is used for membrane filtration of the electrophoresis bath solution; The coarse removal mechanism (2) includes a coarse treatment cylinder (21), a receiving seat (23), a connecting channel (25), and a retaining ring (29). A metal filter bag (22) is installed above the receiving seat (23). The metal filter bag (22) is used to coarsely filter large particulate impurities in the tank liquid. The connecting channel (25) is used to pick up impurities. The linkage mechanism (5) includes a connecting rod (51) and a sliding plate (54). The sliding plate (54) is used to cooperate with the retaining ring (29) and to impact the metal filter bag (22) from left and right.

2. The apparatus for purifying automotive pretreatment tank solution according to claim 1, characterized in that: The connecting channel (25) is fixedly connected to both sides of the receiving seat (23). A filter plate (26) is embedded below the connecting channel (25). The filter plate (26) is used for secondary coarse treatment. A guide block (24) is fixedly connected inside the receiving seat (23). The guide block (24) is used to guide impurities.

3. The apparatus for purifying automotive pretreatment tank solution according to claim 1, characterized in that: The connecting channel (25) connects to the interior of the receiving seat (23), the connecting channel (25) passes through the membrane purification tank (11), and a processing port (28) is opened at the end of the connecting channel (25) away from the receiving seat (23). A baffle (27) is inserted into the side of the connecting channel (25) near the processing port (28) close to the membrane purification tank (11).

4. The apparatus for purifying automotive pretreatment tank solution according to claim 1, characterized in that: The retaining ring (29) is fixedly connected to the inner wall of the coarse treatment cylinder (21), and the retaining ring (29) is composed of a protruding section and a recessed section connected to each other.

5. The apparatus for purifying automotive pretreatment tank solution according to claim 1, characterized in that: The output end of the stirring motor (4) is provided with a stirring shaft (41), the stirring shaft (41) passes through the bucket cover (3), the top of the bucket cover (3) is provided with a liquid inlet, the stirring shaft (41) is surrounded by stirring blades (42), the membrane purification bucket (11) is provided with a liquid outlet pipe (14), the bottom of the membrane purification bucket (11) is provided with a centrifugal motor (13), the output end of the centrifugal motor (13) is connected to the ultrafiltration assembly (12), and one end of the connecting rod (51) is fixedly connected to both sides of the stirring shaft (41).

6. The apparatus for purifying the pretreatment tank solution for automotive painting according to claim 5, characterized in that: The end of the connecting rod (51) away from the stirring shaft (41) is provided with uniformly arranged limiting tracks (53), the limiting tracks (53) are connected to each other by a connecting plate (52), and the limiting tracks (53) are connected to the connecting rod (51) by the connecting plate (52).

7. The apparatus for purifying automotive pretreatment tank solution according to claim 1, characterized in that: The sliding plate (54) is slidably connected inside the limiting track (53). A gasket (57) is fixedly connected to one end of the sliding plate (54) near the metal filter bag (22). Springs (56) are provided on both sides of the sliding plate (54). A connecting plate (55) is provided on the outside of the sliding plate (54). The sliding plates (54) are connected to each other through the connecting plate (55).

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